Yep, yes, true. Yes, I'm going to disagree and you saw it coming.
In my college days, I taped a tiny strip of paper (from a fortune cookie) to inside cover of my linear algebra text book: When in doubt, do nothing.
I think this is my, personal, best position in the case of the hypothetical $50 Riv resale contract. I have nothing to win or lose if I do nothing. If you choose to take action (purchase), go ahead. You might gain from it; you might break even; you might lose some. But if I do not act, I have nothing to lose: no cost outlay; no commitment to annual dues; no frustration over future booking issues; no rental risks; etc. I'm in a sweet position for not acting on this deal.
That said, I faced a similar choice in 2004: buy the DVC that made me smile or some other property, unseen and pre-opening, that looked better on paper? I chose the "looks better on paper" path. After 15+ years of ownership, it remains a relatively unpopular DVC location with depressed resale pricing compared to the others. If I had to sell today, I expect to find a smidge of gains but had to wait a rather long time to see those prices rise. I have no desire be stuck holding Riv.